4.) If chlorine gas is produced by halogen replacement, the other halogen in the reaction must be
a.) bromine.
b.) iodine
c.) astatine.
d.) fluorine.
6.) Which reaction can be predicted from the activity series?
a.) 2Cl ---> Cl2
b.) HCl + NaOH ---. NaCl + H2O
c.) 2HCl +...